William henby lewis and eeastus b



(l lo Model.)

W. H. LEWIS 82; E. B. BARKER.

CAMERA. No. 807,965. Patented Nov. 11, 1884.

U4 Mm m f if" f? f A EW 5 I 2/1, w I i f f 1 I 5 5 r5 L f J WITNESSES 4,4 BY e yaw? a ATTORNEYS.

UNITED STATES PATENT OFFIC WVILLIAM HENRY LEW'IS AND ERASTUS B. BARKER,OF N INV YORK, N. Y., ASSIGNORS TO E. & H. T. ANTHONY & 00., OF SAMEPLACE.

CAM ERA.

SPECIFICATION forming part of Letters Patent No. 307,965, dated November11, 1884.

(No model.)

To all whom it may concern;

Be it known that we, WVILLIAM H. LEWIs and Ennsrus B. BARKER, both ofthe city, county, and State of New York, have in- 5 vented certain newand useful Improvements in Cameras, of which the following is a full,clear, and exact description.

Our invention consists in certain novel features of construction havingthe object to 1 produce a lighter and more convenient instrument thanheretofore made.

g The improvements relate particularly to the folding bed, to the meansfor securing the object-glass in place, and to the construc- 1 tion ofthe box, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicate cor-2 responding parts in all the figures.

Figure l is a longitudinal section of a camera of the improvedconstruction with the plate-holder in place. Fig. 2 is a rear elevationof the camera with the object-glass partially broken away, and Fig. 3 isa perspective view of a plate-holder as made for use with thisinstrument.

In their general construction the box A, the lens-frame B, and bed 0, onwhich the box slides, are as usual in cameras of this class. Thebed-frame O is hinged at a, so as to fold up compactly behind the boxfor con venienee of transportation, and it is fitted with the rack I),that is engaged by the pinion c on the box for adjustment of the latter.

For holding the bed firmly in its horizontal position the hooks (1 clare provided, these being pivoted 'on the sides of the frame at eachside in position for being turned down 40 upon and over the crossbar 0.

As shown most clearly in Fig. 1, the pivots of the hooks d are in frontof and below the hinges a, while their ends taking over the bar 6 arebehind the hinges, so that any tend- 5 ency of the bed to rise causes aclamping or binding action that prevents such rise. The

hooks can be easily raised when the bed is to be folded up.

The second feature of invention relates to the corner clamps f, by whichthe objectglass f/ is held in the frame h. These cornerclamps have eacha spring-tongue, f, projecting upon the glass at the outside, so as topress the same firmly into the rabbet of the frame and thus prevent anylooseness of the glass. 5 5 XVith these clamps glass of any thicknessmay be used without regard to the depth of the rabbet, as the clampswill accommodate themselves to the glass.

The third feature of improvement has the object to reduce the weight andallow the use of plate-holders of more simple construction thanheretofore employed. Usually the plate-holder is ribbed and the edges ofthe box grooved to receive the rib, so as to prevent movement of theholder, and that construction requires material of considerablethickness in both the box and holder.

As shown in the drawings, a rib, k, or pro jecting flange is formed atthe inner edges of the box-frame, and the opening in holder D is of asize to fit outside the rib k, so that when the holder is put in placethe rib passes into the opening. It will be seen that with thisconstruction the opening in the holderframe is relatively larger thanthat of the box, and the thickness of material correspondingly reduced,and, further, that the holder-frame is of plain construction.

Having thus described our invention, what Sc: we claim as new, anddesire to secure by Letters Patent, is-

1. In a camera having a hinged or folding bed, the means, substantiallyas described, for holding the bed in position for use, 0011- sisting ofhooks pivoted below the hinge, so as to bind the parts as specified.

2. In a camera, the combination of hooks d d with hinged bed-frame O,substantially in the manner and for the purpose specified.

8. In a camera the corner-clamps,f, formed with tongues f combined withthe obj ectgl ass 6. A camera-box made with a rib or flange 10 adaptedto enter the opening of the plateholder for retaining the holder inplace, as specified.

and frame, substantially as and for the purpose specified. v

4. In a camera, the combination, with the 0bject-glass and frame, ofspring holding-clamps, substantially as described.

5. The camera-box having a rib or flange, 7:, at the edges of theopening, combined with a platedioldcrhaving an openingiaige cnough toreceive the rib, as specified.

WILLIAM HENRY LEWIS. ERASTUS B. BARKER. XVitnesscs;

EDGAR TATE, ROBERT T. ADAMS.

